2.3 Emergency hydraulic brakes

NHCD Series: hydraulic emergency brakes (failsafe), spring applied and hydraulically released. These brakes are typically used in applications such as cable drums and conveyors. For their operation, they need to be connected to a hydraulic unit.
Each brake consists of two half-calipers symmetrically mounted at each side of the central line of the disc.
The clamping force of the brake depends on the force made by the springs.
NHCD brakes can be equipped with any of the following options:

  • Open brake switch indicator (CSA)
  • Lining wear detector (DD)
  • Hydraulic unit to operate the brake
  • Set of fittings/hoses
  • Fixing bolts
  • Brake bracket

Within the NHCD Series of hydraulic emergency brakes, ANTEC offers three different families:

  • NHCD-900: clamping force up to 55.000 N
  • NHCD-1400: clamping force up to 150.000 N
  • NHCD-1900: clamping force up to 250.000 N

Within the diverse models of each family, only the spring compression varies, being the rest of the components exactly the same.
NHCD-900 SERIES
(NHCD 917 – NHCD 925 – NHCD 931 – NHCD 937 – NHCD 947 – NHCD 956)

Its main technical characteristics are:

  • Clamping force up to 55.000 N
  • Double spring failsafe emergency brake
  • Spring applied
  • Hydraulically released

Options
All ANTEC NHCD 900 hydraulic emergency brakes can be equipped with any of the following options:

  • Open brake switch indicator (CSA)
  • ining wear indicator (DD)

nhcd-900 Emergency hydraulic brakes
NHCD-1400 SERIES(NHCD 1407 – NHCD 1409 – NHCD 1411 – NHCD 1413 – NHCD 1415)
Its main technical characteristics are:

  • Clamping force up to 150.000 N
  • Double spring failsafe emergency brake
  • Spring applied
  • Hydraulically released

Options
All ANTEC NHCD 1400 hydraulic emergency brakes can be equipped with any of the following options:

  • Open brake switch indicator (CSA)
  • Lining wear indicator (DD)

nhcd-1400 Emergency hydraulic brakes
NHCD-1900 SERIES (NHCD 1910 – NHCD 1915 – NHCD 1920 – NHCD 1925)
Its main technical characteristics are:

  • Clamping force up to 200.000 N
  • Double spring failsafe emergency brake
  • Spring applied
  • Hydraulically released

Options
All ANTEC NHCD 1900 hydraulic emergency brakes can be equipped with any of the following options:

  • Open brake switch indicator (CSA)
  • Lining wear indicator (DD)

Installation

  • Antec offers simple or double brackets for the anchorage of the brake

nhcd-1900 Emergency hydraulic brakes
NHCD-2100 SERIES (NHCD 2125 – NHCD 2130 – NHCD 2135 – NHCD 2145)
Its main technical characteristics are:

  • Clamping force up to 450.000 N
  • Double spring failsafe emergency brake
  • Spring applied
  • Hydraulically released

Options
All ANTEC NHCD 2100 hydraulic emergency brakes can be equipped with any of the following options:

  • Open brake switch indicator (CSA)
  • Lining wear indicator (DD)

Installation

  • Antec offers simple or double brackets for the anchorage of the brake

NHCD-2100
HYDRAULIC UNITS
For the operation of the NHCD series hydraulic emergency brakes it is necessary to use a hydraulic unit. Antec offers a reliable and comfortable hydraulic unit with the following technical characteristics:

  • Oil tank with a capacity up to 16 liters
  • Assembly pump-motor
  • Distributor that includes high pressure filter, electro valves and on/off switches
  • Air ventilation pipe
  • Oil level switch
  • Accumulator

The advantages of the ANTEC hydraulic unit are:

  • Compact and easy to handle
  • Offers a high pressure filter of 10 microns, that protects the valves and the brake from the dust
  • Hand lever that allows to pump and operate the unit in case of emergency

HYDRAULIC UNITS